FabTally Safe
Read-only crypto safety: token honeypot checks, EIP-712 signature decode, approval scans.
使うべきか
品質と安全性
検出事項（1）
- LOWTool 'simulate_free' description lacks action verbsimulate_free 内
ツール定義とプロトコルへの準拠に関する自動分析に基づいています。
コンテキストコスト
これは、サーバーのツールがモデルのコンテキストに読み込まれるたびに消費されるおおよそのトークン数です。数が多いほど、ほかのタスクに使える注意が減ります。
インストール
ワンクリックインストール
これを `claude_desktop_config.json` ファイルに追加してください:
{
"mcpServers": {
"crypto-safety": {
"url": "https://safe.fabtally.com/mcp"
}
}
}リモートエンドポイント
https://safe.fabtally.com/mcpstreamable-httpできること
ツール一覧
ツール（8）
🟢token_safety(address, chain, x_payment)
PAID $0.02 (x402, USDC on Base). Multi-chain token honeypot/rug check aggregating GoPlus token-security + honeypot.is buy/sell-tax simulation into a normalized 0-100 risk score with explainable reasons: honeypot/can't-sell, buy/sell tax, mint/blacklist/pausable/ownership privileges, top-holder concentration, LP-lock, contract verified/bytecode. Descriptive facts only — NOT a buy/sell signal. Without payment returns the x402 challenge; pass x_payment to settle. Free teaser: token_safety_free.
入力スキーマ
{
"type": "object",
"properties": {
"address": {
"type": "string",
"description": "0x token contract address."
},
"chain": {
"type": "string",
"description": "Chain: ethereum | base | bsc | polygon | arbitrum | optimism."
},
"x_payment": {
"type": "string",
"description": "x402 payment payload (base64) for this PAID tool. If supplied it is forwarded as the X-PAYMENT header to settle the call and return the real result instead of a 402 challenge. Omit to get the price challenge first."
}
},
"required": [
"address",
"chain"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}⚪token_safety_free(address, chain)
FREE. Score band + top-line honeypot/tax/privilege flags for a token {address, chain}. Real result, no wallet. Upgrade to token_safety for the full numeric breakdown.
入力スキーマ
{
"type": "object",
"properties": {
"address": {
"type": "string",
"description": "0x token contract address."
},
"chain": {
"type": "string",
"description": "Chain: ethereum | base | bsc | polygon | arbitrum | optimism."
}
},
"required": [
"address",
"chain"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}⚪decode_signature(typed_data, chain, x_payment)
PAID $0.01 (x402, USDC on Base). Decode an off-chain EIP-712 typed-data signature (Permit / Permit2 / Seaport / generic) into plain English with risk flags: unlimited approval, unknown/known-malicious spender, never-expiring or already-expired deadlines, zero-consideration NFT-drain orders. Off-chain signatures are the top wallet-drainer vector. Pure offline decode — never signs/broadcasts. Without payment returns the x402 challenge; pass x_payment. Free teaser: decode_signature_free.
入力スキーマ
{
"type": "object",
"properties": {
"typed_data": {
"type": "object",
"additionalProperties": {},
"description": "EIP-712 typed data object: {domain, types, primaryType, message}."
},
"chain": {
"type": "string",
"description": "Optional chain override (else read from domain.chainId)."
},
"x_payment": {
"type": "string",
"description": "x402 payment payload (base64) for this PAID tool. If supplied it is forwarded as the X-PAYMENT header to settle the call and return the real result instead of a 402 challenge. Omit to get the price challenge first."
}
},
"required": [
"typed_data"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}⚪decode_signature_free(typed_data, chain)
FREE. Type + plain-English summary + risk level for an EIP-712 `typed_data`. Real result, no wallet. Upgrade to decode_signature for the full field-by-field decode + all risk flags + malicious-spender screening.
入力スキーマ
{
"type": "object",
"properties": {
"typed_data": {
"type": "object",
"additionalProperties": {},
"description": "EIP-712 typed data object: {domain, types, primaryType, message}."
},
"chain": {
"type": "string",
"description": "Optional chain override (else read from domain.chainId)."
}
},
"required": [
"typed_data"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}⚪approvals(address, chain, x_payment)
PAID $0.01 (x402, USDC on Base). Scan a wallet's ERC-20/721 approvals ranked by exposure; flags unlimited amounts, unverified/known-malicious spenders, and address-poisoning 'fake-approval revoke bait'; returns the exact revoke calldata you execute YOURSELF (never executed/broadcast by us). Without payment returns the x402 challenge; pass x_payment. Free teaser: approvals_free.
入力スキーマ
{
"type": "object",
"properties": {
"address": {
"type": "string",
"description": "0x wallet address to scan."
},
"chain": {
"type": "string",
"description": "Chain: ethereum | base | bsc | polygon | arbitrum | optimism."
},
"x_payment": {
"type": "string",
"description": "x402 payment payload (base64) for this PAID tool. If supplied it is forwarded as the X-PAYMENT header to settle the call and return the real result instead of a 402 challenge. Omit to get the price challenge first."
}
},
"required": [
"address",
"chain"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}⚪approvals_free(address, chain)
FREE. Approval counts + top-3 riskiest spenders for {address, chain}. Real result, no wallet. Upgrade to approvals for EVERY approval ranked + revoke calldata.
入力スキーマ
{
"type": "object",
"properties": {
"address": {
"type": "string",
"description": "0x wallet address to scan."
},
"chain": {
"type": "string",
"description": "Chain: ethereum | base | bsc | polygon | arbitrum | optimism."
}
},
"required": [
"address",
"chain"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢simulate(chain, from, to, data, value, ...)
PAID $0.02 (x402, USDC on Base). Keyless pre-sign analysis of {chain, from?, to, data, value?}: public-RPC eth_call revert check + static calldata decode predicting approval/transfer deltas + risk flags (unlimited approval, approval-for-all, reverts). Honest keyless limitation stated in the response (no full fork trace). Without payment returns the x402 challenge; pass x_payment. Free teaser: simulate_free.
入力スキーマ
{
"type": "object",
"properties": {
"chain": {
"type": "string",
"description": "Chain: ethereum | base | bsc | polygon | arbitrum | optimism."
},
"from": {
"type": "string",
"description": "0x sender (optional but improves accuracy)."
},
"to": {
"type": "string",
"description": "0x target contract/recipient."
},
"data": {
"type": "string",
"description": "0x calldata (omit for a plain value transfer)."
},
"value": {
"type": "string",
"description": "Value in wei (optional)."
},
"x_payment": {
"type": "string",
"description": "x402 payment payload (base64) for this PAID tool. If supplied it is forwarded as the X-PAYMENT header to settle the call and return the real result instead of a 402 challenge. Omit to get the price challenge first."
}
},
"required": [
"chain",
"to"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}⚪simulate_free(chain, from, to, data, value)
FREE. Method + revert flag + risk level + predicted effect types for a transaction. Real result, no wallet. Upgrade to simulate for the full predicted deltas + all risk flags.
入力スキーマ
{
"type": "object",
"properties": {
"chain": {
"type": "string",
"description": "Chain: ethereum | base | bsc | polygon | arbitrum | optimism."
},
"from": {
"type": "string",
"description": "0x sender (optional but improves accuracy)."
},
"to": {
"type": "string",
"description": "0x target contract/recipient."
},
"data": {
"type": "string",
"description": "0x calldata (omit for a plain value transfer)."
},
"value": {
"type": "string",
"description": "Value in wei (optional)."
}
},
"required": [
"chain",
"to"
],
"additionalProperties": false,
"$schema": "http://json-schema.org/draft-07/schema#"
}コミュニティ
エビデンス